Calibration impact hammer

Details Calibration impact hammer Calibration impact hammer

1986-03-05

1987-09-01

Levy, Stewart J.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

73 12, G01L 100

Patent

active

046899855

ABSTRACT:
An instrumented hammer that gives the operator a measurement of the impact energy of each hammer blow. A head or main body portion slidably receives an inertia rod spring mounted in a longitudinal bore therein. Upon striking a surface, momentum causes movement of the rod forward against the spring pressure. A slot on the rod moves through an optical switch which emits a signal relative to the movement of the slot therethrough. A display assembly receives the signal and calculates the impact energy of the hammer blow.

REFERENCES:
patent: 3435658 (1969-04-01), Arthur
patent: 3538743 (1970-11-01), Glidden
patent: 4399685 (1983-08-01), Atkey
patent: 4422320 (1983-12-01), Moorby et al.
Henderson et al., "An Optical System For Measurement of Energy for Pendulum Impact Machines", pp. 35-39, ISA Transactions, vol. 18, No. 3, 1979.

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